So I only have these four at the moment, and if your wondering what they're supposed to be, they were an idea I came up with for prototype warships. All 4 use the base frame of submarines which I proceeded to add onto and change. All submarine designs were made by Lord Dakr, so here's the tutorials for the subs. (All modifications were done by me though, the cannons on the ships were either from Lord Dakr's Arleigh Burke Destroyer and USS Independence LCS-2, rocket launchers were custom made by me though, as well as side engines).
Seawolf: https://www.youtube.com/watch?v=ZbTqj_vpOLI
Nautilus: https://www.youtube.com/watch?v=7iRaLdm4uB8
Astute: https://www.youtube.com/watch?v=mjqr_ufLRWU
Trafalgar: https://www.youtube.com/watch?v=pCb1O7Fcknw
I will try to get at his new submarine tutorial he has for the Vanguard-class SSBN and see how I can modify that like these. I'd assume that I'll probably make it into a Battleship due to the massive size, but might just modify Jagthunder1's small Typhoon submarine into a Battleship since his submarines are much larger.